Is it possible to initiate data exchange between a server and an Android application via GTalk?

First, I'd like be able to send a message from Android app. to GTalk desktop client, but I cannot guess how to do it. For example, there is a method IGTalkSession.sendDataMessage(String to, Intent broadcastIntent) which should be used to send a message from one device to other (like in GTalkDataMessageSender, GTalkDataMessageReceiver demos).

How can it be used to send a message to the server? or may be there is another way to do it?